AS3561 208.156.80.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048208.156.80.0/24208.156.81.0/24208.156.82.0/24208.156.83.0/24208.156.84.0/24208.156.85.0/24208.156.86.0/24208.156.87.0/24